Mymensingh higher secondary 2013#4

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samiul_samin
Posts: 1004
Joined: Sat Dec 09, 2017 1:32 pm

Mymensingh higher secondary 2013#4

\$9^x-3^{x+1}=k\$ this equation has one or more real roots . Then the values of \$k\$ can be write as \$[c,b)\$ . Find \$c\$.

samiul_samin
Posts: 1004
Joined: Sat Dec 09, 2017 1:32 pm

Hint